Regression: Crash-free metrics are incorrectly reported as 100% on Android

[SilverSwift]

Environment

Unreal Engine 5.5

Self-hosted Sentry
Sentry-unreal plugin v1.5.0
Downloaded from github releases.
Android platform.

Steps to Reproduce

Regression: Events captured on Android with error and fatal levels are successfully delivered to Sentry and appear in Issues. However, while these events increment the total session count on the Release Stats page, crashed sessions are incorrectly reported as healthy. As a result, crash-free metrics for Android releases are always shown as 100%, despite confirmed crashes.

This behavior is a regression: the same metrics worked correctly up to sentry-unreal plugin version 0.22, but broke starting with version 1.0.0-alpha.1.

The issue was reproduced with both EnableAutoSessionTracking enabled and with manual StartSession / EndSession calls.

Only Android is affected, other platforms are work as expected.

Expected Result

Crashed sessions are marked as unhealthy. Crash rate, crash free sessions and crash free users metrics display valid values

Actual Result

Metrics are always 100%.

[linear]

UNREAL-118

[tustanivsky]

@SilverSwift Thank you for bringing this issue up - we'll check it on our end and get back to you.

[tustanivsky]

Quick update on this - we were able to reproduce the issue with Unreal SDK v1.5.0. However, when testing against the latest main branch (which includes some unreleased changes including an Android SDK update to v8.31.0) the issue no longer occurs and should be resolved automatically in the next plugin release.

[tustanivsky]

This issue should be resolved in 1.6.0 through updates to the underlying Android SDK. Feel free to reopen if the problem persists.

[SilverSwift]

Hello @tustanivsky!
I’d like to report that updating to Sentry Unreal v1.6.0 improves crash-free statistics when EnableAutoSessionTracking is set to true.

However, the problem still occurs if EnableAutoSessionTracking = false and the session is started manually. Manual session tracking works on platforms other than Android.

[tustanivsky]

@SilverSwift Thanks for the follow-up. It looks like this may be another issue in the upstream Android SDK related to manual session handling. We’ll investigate and keep you posted.